Scroll through the list of calendars, clicking a calendar's checkbox to subscribe to it, or the drop-down menu to expand the topic.
After checking all the calendars you like, click the Back button located next to Settings to return to your calendars.
The subscribed calendars are added to your Other calendars list.
Create and Delete Calendars
In the same way that you can subscribe to calendars, you can create new calendars for yourself or your team to help organize events into logical groupings, such as Work and Personal calendars.
Create a new calendar
In the calendar list on the left, click the Plus sign button located next to Other calendars, and choose Create new calendar.
Type a name for the new calendar, enter a description, if desired, and click Create calendar.
Click the Back button located next to Settings to return to your calendars.
The new calendar appears in alphabetical order under My calendars.
Once you have created an additional calendar, you will have the option of specifying a calendar when creating new events.
Delete a subscribed calendar
To delete a calendar to which you subscribed, simply unsubscribe. To unsubscribe from a public calendar:
Point to the name of the calendar in the calendar list on the left.
Click the X button that appears to the right of the calendar name.
The calendar is not really deleted, in that others can still subscribe to it, but you will no longer see it or its events in your calendar.
Delete a created calendar
To delete a calendar that you created requires a few more steps, and is permanent; it cannot be undone. Also, you cannot delete your primary (default) calendar, but you can delete its events.
Point to the name of the calendar in the calendar list.
Click the Options button (three dots) and click Settings and sharing.
Scroll to the bottom of the page and click the Delete button located under the heading Remove calendar.
At the warning that appears, click Permanently delete.
Click the Back button located next to Settings to return to your calendars.
Share Your Calendars
You can allow other users to subscribe to your calendar to create shared calendars, and you control whether they can view, edit or manage the shared calendar.
To share a calendar:
Point to the name of the calendar in the calendar list.
Click the Options button (three dots) and click Settings and sharing.
Scroll down to the Share with specific people section.
Click the Add people button.
In the pane that appears, add one or more email addresses of people with whom to share the calendar. Press Enter/Return after each email address.
Click the Permissions menu and specify which permission level to grant these users.
With this setting
Users can
See only free/busy
see events on your schedule, but no details
not add, edit or remove events
not change calendar settings
not change sharing settings
See all event details
see events on your schedule, with details
not add, edit or remove events
not change calendar settings
not change sharing settings
Make changes to events
see events on your schedule, with details
add, edit or remove events
not change calendar settings
not change sharing settings
Make changes and manage sharing
see events on your schedule, with details
add, edit or remove events
change calendar settings
change sharing settings, including denying you access
Click Send to send an invitation to these users that will include a link to your shared calendar.
If a user does not have a Google account, an alert will appear asking if you want to invite them to create a Google account so that they can share your calendar.
Click the Back button located next to Settings to return to your calendars.